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LED theme

The button LEDs glow dim red instead of white, or stock white turned down, for a darker room.

Trigger
Always on
MPC versions
Any (tested on 3.9.1.2 and 3.10.0)

What it does

The MPC One+'s buttons light up bright white and blind the user. This mod makes them dim red at rest and brighter red when active, which lets you see again, and for the first time you will be able to read the button labels. You can also keep stock white and just turn it down.

The Q-Link row and the REC, OVERDUB and PLAY lights work as normal, at the same levels.

How to use it

Nothing to do: the theme is on whenever MPC runs. Brightness changes in the settings take effect at the next MPC start.

Settings

In led-theme.conf (read when MPC starts):

Setting Default What it does
red 1 Buttons red instead of white.
red_dim 3 Idle button brightness, 0 to 127.
red_bright 40 Active button brightness, 0 to 127.
scale (off) With red=0: stock white at this percentage of stock brightness.
enabled 1 0 brings back stock LEDs. Needs an MPC restart.

Diagnostics: log, midi_trace.

How it works

The MPC talks to its own front panel over an internal MIDI connection. At start-up it sends each button's brightness levels, and after that it just tells each LED which level to show. The mod rewrites those start-up levels and the white and red choice on the way out, and passes everything else through unchanged. It works with Open MPC's other mods that listen on the same connection. It doesn't depend on any MPC version.